Three-way socket and lamp



Aug 16 1938 s. sAMlQluT 2,127,370

THREE-WAY SOCKET AND LAMP Filed March 22, 1957 2 Sheets-Sheet l INVENTOR ATTORNEY S. SAMMUT THREE-WAY SOCKET AND LAMP Aug. 16, 1938. 2,1273%? 2 Sheets-Sheet 2 Filed March 22, 1937 2y 49" j v s y INVENTOR .Serzbur Sawmill BY I! E ATTORNEY Patented Aug. 16, 1938 UNITED T ES PATENT OFFICE 1 Claim.

This invention relates. to new and useful improvements in a. three way socket and lamp.

The invention has for an object the construc tion'of a device as mentioned which is cheroc= c terimclby a. socket for receiving a three contact lamp and which is constructed to act as an 1 adopter cool he screwed into a conventional sock-=- et t ohouseholo or other electric circuit. The

I invention contemplates the provision of a. mech w onism. within-solo socket which may be operotet'l manually to piece the socket into a, plurality cl ollfierent possible conditions.

It is oroooseo that in one condition the socket controls the pessoee of electricity through a pair of the contacts of the lamp and so lights one filoment within the lamp. In a, second position it is proposed thet the socket control passage of cu'r rent to the three contacts or" the lamp and so llght two moments in the lamp. In the thirol M9 oosltlosz, thet the socket control the passage of current to the second filament lo the lamp only;

one to the fourth position it lo proposed thet the sochetclit oi? the oossege of current so that the lame to It is prooosetlto provide an arrangement for periodically throttle the two finger conductor whenever this is oeclrecl to ohteln the four pooltion comolzootlon prevloosly mentioned.

Stlll further the invention proposes on orrensement whereby the fingers of the conductor ore reoolily removohle one. replaceable, and oh etrongement whereby the conductor is etloptecl to receive otltlltlonel losers so that by s. szzholl elteretloh it is possible to change the operative sequence of the clot/ice.

For further comprehension of the invention, and of the objects ohoedvanteges thereof, ref ererlce villl he had to the following clescriptlon ainol eccomoenylne drawings, and to the appendith ed clelm in which the various novel features of the invention -ore more particularly set forth.

In the-accompanying drawings. forming a me-= teriel port of this disclosure:--

Fig. l is a. perspective view of a three was, so socket constructed according to this invention.

- 'llhetnvehtloo hos for on object the ccnstr oc Fig. 2 is a. perspective view of a. lamp adapted to engage in a. socket shown in- Fig. 1.

Fig. 3 is a, sectional vlew taken on the line 3-4 of Fig. 1.

Flg. e to on 'elevetlonol view looking in the op- 5 posite directlori to the llrle 3-3 of Fig. 1.

Fig. 5 is o, horisontol sectional view taken on the line 5-6 of 3. t

Fig. 6 is e horleontol sectlonel view taken on the llhe El -E3 of Fig. 10

Fig. 'lic e transverse sectionel view taken on the lloe l -l] at late.

Flo. ll to o. horizontal sectlonel view taken on the lloe 2-=-8 oi ll.

Flo. 9 to e oezfeoectlve view of o gotntle screwand spring clearly shown to 2.

Flex 1o to o perspective view ol en insuletlon hoot; cool retchet element shown to. Flee. 5 and 7. Flo; M. to o oersoectlvevlew oi. the two finger conductor pee lilo. 12 lo cectloool'vlew the hue 62 l of 5.

13 lo tlevelooetl eectlonol view taken on the clot one cttcle A in It.

Flo. lo o scheniotlc whine-timezone at the socket.

Flo. 15 lo o oeec oeotlve vtewslmilor to Flo. 1; hot illootretioe another fiollll ol the invention.

his. to ls o oerspectlve vlew, slmller to Flo. 2 hot lllostmtlne another form of The three only socket one llght, according to thls invention, comptlees on mslolotion hotly l5 tvlth on lntcrnel ohmllor met-:- fill which is dlvideol into four ooeolrohtc so clearly shown in Figs. 3 and Ill shell contcct ll one en one contact fill is mounted upon one one of the hotly It. A three ooeolhe plug socket ll? ls mounted on the other cool of the loorltilil for receiving the three terminals oi moltl fllemeot lamp to.

,There is on electrlcel connection fill extended: 40 between the shell contoct ll and oneof the openthe lo; the clue socket to, namely. the opening it. There ls on electrlcol'connectlon 22 from one oi cold ooetlrehto, namely the quadrant i6 into the openlne l9. There is an electrical connectlon as from the ouecl'ront W to the opening IS. A. two finger conductor at is cooxiel with the annular eree it cool is rotatively mounted, and is in to circuit which terminates in the encl contact to. Thls clrcult moy be traced from the conductor 26 to e screw 25 which coaxi'elly supports the conductor to o bracket 26 which is in contact with eportlon ol? the screw 25 and which extends upwords and. connects with a screw 21 having a. head iii comprising the said end contact ll. There is also a means ior manually controlling the turning of the conductor 3! in steps of as desired. I

The lamp 2! has a multiple filament consisting of the sections II and 30. These sections have a common lead II which connects with the terminal 20' adapted to engage in the opening II. The filament 25 also connects with a termi-- nal 10 adapted. to engage in the'opening ill. The filament 30 connects with a terminal W adapted to engage in the opening It. It will be noted that if current is supplied to the termh nals 20 and 20 the filament M will be lighted. Ii supplied to the terminals M and "N the filament It will be lighted, and ii supplied to all of the three terminals II, II", and 28-- both file.- ments will be lighted. While one lamp with a multiple filament has been illustrated separate lamps or separate electrical mechanisms may be substituted for the multiple filament without changing the operation and intention of the invention.

The insulation body II is made from two hall sections it and il These half sections are placed against each other and secured inthis position by a bolt II engaged through the sections. At the area where the bolt 52 passes through the sections the sections have a transverse partition 35. a tor the purpose of making the insulation body solid at this area. At other areas the sections of the insulation body are hollow. The partitions 34 and 55 are recessed and hollowed out slightly to permit the passage of certain electrical connections. There is a recess ll in the partition 35 through which the connector 23 passes. This connector is formed with an opening 21- through which the bolt 32 passes. There are recesses 81 iormed in the parts ll through which portions of the connectors 2i and 22 pass. There are complementary recesses I'I' formed in the partition 84 through which portions of the connectors II and 22 extend.

At one end the body II is formed with a threaded portion 8! upon which the contact shell i1 is set and clamped. the body II is also formed with a side opening I. through which a pull chain ll extends. This pull chain controls the rotating oi the conductor 24 as hereinafter further explained. There is a horizontal partitlon 42 within the body ll which forms a support for the bracket 25. The bracket is held against this partition by the screw I1.

The shell contact I1 is of standard dimensions so that the socket may be screwed into a conventional household electric socket or similar socket. The three openings I, II", and II in the plug socket II are adapted to receive the three terminals II, II and 2| and to then make electrical connection with the connectors II, 22 and II.

The electrical connection II comprises a metallic strip connector ll one end of which extends through an opening in the body I! and engages the shell and the other end of which connects with a spaghetti covered lead It which in turn is connected with the socket opening ii. The electrical connection 22 comprises a strip of'metal 22' which is connected at one end with a segment 22' within the quadrant Il and which is connected at the other end with a spaghetti covered wire I! connected with the socket open ing II. The electrical connection 28 comprises a. strip 01' material which is connected at one end with a segment II in the quadrant W and answers which is connected at the other end with a spaghetti covered wire 23 connected with the plug opening i9.

The means for rotating the conductor 2! in steps of 90 includes an. insulation Washer ll time upon the screw 25 and having hook M5 at one end which is engaged by a connector element M5 in turn connected with the chain Ii. Tifhis chain extends through the opening (ill. The insulation washer M is also provided with a shoulder i'i which is engaged Toy one end d8 of a spring Ml which is couxially mounted on the screw iii. The other end of this spring-lii engages 9. lug portion d8 of a headolemeni; which is mounted upon the head of the screw ill.

spring 4% acts against the shoulder to nom'ially turn the insulation washer i l clockwise when looking towards the right in Fig.1. The chain 4i may be pulled to turn insulation washer 44 anti-clockwise. 0n one lace oi the insulation washer 44 there is a ratchet disc 50 fixedly mounted. This ratchet disc has ratchet'fingers 5! "which are cooperative with fingers t2 formed on the two finger connector 2!.

The annular area It has its quadrants formed of ratchet shape as shown in Fig. 13. The arrangement is such that when the insulation washer turns anti-clockwise,looking towards the right in Fig. '7, then the fingers 5i engage the fingers 52 and turn the two fingered connector 24, through 90 and the fingers 24 and 24 of the conductor are then snapped into difierent quadrants of the annular quadrant area it. When the chain M is released the spring 48 will turn back the insulation washer 44 but make the fingers 5| merely slide over the fingers 52 and the two finger conductor 24 maintains its position while the insulation washer M idles back to its initial position to be ready for the next pull on the chain.

The two finger conductor 24 is formed with several dovetailed slots 55. Each of the fingers 24* and 24' are formed with dove tailed tongues engageable in the slots 55. The fingers 24 are then looked in position by drops of solder engaged over the dove tailed tongues and grooves. with this arrangement it is possible to merely apply a hot iron to release any one of the fingers so that it may be removed and replaced, or its position on the body 01' the conductor H changed. The dot and dash lines in Fig. 11 indicate additional fingers applied to the conductor 24. In this manner the conductor may be provided with three fingers or four fingers to change the operation oi the device.

With the two fingers the operation of the deyice is as follows: It may be best understood by an examination of Fig. 14. In the position of the two finger conductor shown in this figure the circuit is completely open through the socket. When the chain II is pulled once and released the two finger conductor 24 will turn through 90. Now the finger 24' of the conductor will engage the segment 22 and the circuit will be closed through the plug opening IS. The return opening is l9. In this condition the filament 30 will be illuminated if the lamp 2! is engaged in the socket.

when the conductor 24 is caused to rotate another 90 then the finger Il will engage the segmerit 23F and the finger 24' will engage the segment 2!. The circuit is now closed through all three of the plug openings l9, I9 and Upon another 90 turn of the conductor 24 the finger '24 will be in an inoperative position and the oozmoon plane.

finger as will be engaging the segment 23*. The circuit will now be closed through the socket \ooeningo i8 and us and. thus the filament 2! of mo lamp iowill be illuminated, when the lamp is in the socket. Another 9G mm of the 90!!- oiuotor 2&3 and it is book to its original inoperative position as shown in iuliiinoa in 14.

if it is desired 'io oioer the operation oi the oovioo it is mereiy necessary that the bolt 32 be oui, the 502137 sections 83* omi 85 be sepaiotoii, oocl thot the screw 2% be mmoveoz. Til-en iiie two finger ooooiiioior 26' is accessible and or oiioiomoi fingers may be added. When more are four fingers on the conductor and time device re- 1 assembled oil fiiomon os wm be iiiummooeai in on 'gaooitiono of the conductor, and so on, it 1: 3 possibio to obtain difiereni; oombmoinionotid pmoiioiis of the thxee wogr socket.

illustrates mother omiwolimem of $118 u {v ovomion. This form of time invention difiors gloom the prior ios'm in motion of? siesigm only. 1 mozzo'oiixo:3 to this form the three way socket de- Toos o body portion 5 6 oi the 6mm ims'sooo 'aiooi shape. The large oiome sors are m a in other respscto she doviooio momma to the previous form. The parts which ozzoosod are indicated by tho some reference numerals. The interior parts are not shown since it womfi be o more repetition to show them. V Fig. 16 another embodiment of the Ramp for fame times may socket is shown. Aooorciing to this o odimom the lamp has a ioooigr gs-ox'iion 221" m spiiaiiooi moo-e ooxiiraoted mm i-iio pear shape up! the body ohown in Fig. 2. In other respects this form of the invention is similar to the prewious form omi simiiar parts may be recognized ioyooonosponding reiex enoe numerals.

Wx'iiie I have illustrated and described fiche preflamed embodiments of my invention, it is to be unfloroiood that 1 do not limit myself to the preoise constructions herein disclosed and i112 mom is resez'vod to all changes and modifications oomr mg within the scope of the invention as defined in the opgoenooo claim.

Having thus qiesorioed my invention, "What I claim as new, and desire to secuio or; United fi bo teo Letters Patent Elsi- In :2, device of the class described, 9. body having contact, a. conductor rotativeiy supportod ooijooent said contact and having on amending fingo? for engaging said contoot, a member 1'0- iaiivoiy supooried cooxioily with said oonouoior, fingers on said membar, said oommo'tor comprising a body portion, finger portions on said body portion and ooootofoio with said fingers on said member for turning said conductor, solder for holding said first meniioned finger in position on said oonductoi', anchorage elements on the pai'iphory of said body portion, and o complememory anchorage eiement on said first-meniionerli finger and engogea-ble soiectively'wiih soid anchorage elements for assisting in reieasao'iy holding said first-mentioned fingei' in various fixed positions on said body portion.

SANIOUR SAME/1 W1". 

